1 files changed, 63 insertions, 0 deletions
diff --git a/tests/generators/generate-luks2-metadata-size-64k-inv-keyslots-size-c0.img.sh b/tests/generators/generate-luks2-metadata-size-64k-inv-keyslots-size-c0.img.sh
new file mode 100755
index 0000000..5b8517a
--- /dev/null
+++ b/tests/generators/generate-luks2-metadata-size-64k-inv-keyslots-size-c0.img.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+
+. lib.sh
+
+#
+# *** Description ***
+#
+# generate primary with predefined json_size where keyslots size
+# overflows in data area (segment offset)
+#
+# secondary header is corrupted on purpose as well
+#
+
+# $1 full target dir
+# $2 full source luks2 image
+
+function generate()
+{
+	# 64KiB metadata
+	TEST_MDA_SIZE=$LUKS2_HDR_SIZE_64K
+
+	TEST_MDA_SIZE_BYTES=$((TEST_MDA_SIZE*512))
+	TEST_JSN_SIZE=$((TEST_MDA_SIZE-LUKS2_BIN_HDR_SIZE))
+	KEYSLOTS_OFFSET=$((TEST_MDA_SIZE*1024))
+	JSON_DIFF=$(((TEST_MDA_SIZE-LUKS2_HDR_SIZE)*1024))
+	JSON_SIZE=$((TEST_JSN_SIZE*512))
+	DATA_OFFSET=16777216
+
+	json_str=$(jq -c --arg jdiff $JSON_DIFF --arg jsize $JSON_SIZE --arg off $DATA_OFFSET \
+			 --arg mda $((2*TEST_MDA_SIZE_BYTES)) \
+		   '.keyslots[].area.offset |= ( . | tonumber + ($jdiff | tonumber) | tostring) |
+		    .config.json_size = $jsize |
+		    .config.keyslots_size = (((($off | tonumber) - ($mda | tonumber) + 4096)) | tostring ) |
+		    .segments."0".offset = $off' $TMPDIR/json0)
+	test -n "$json_str" || exit 2
+	test ${#json_str} -lt $((LUKS2_JSON_SIZE*512)) || exit 2
+
+	write_luks2_json "$json_str" $TMPDIR/json0 $TEST_JSN_SIZE
+	write_luks2_json "$json_str" $TMPDIR/json1 $TEST_JSN_SIZE
+
+	write_bin_hdr_size $TMPDIR/hdr0 $TEST_MDA_SIZE_BYTES
+	write_bin_hdr_size $TMPDIR/hdr1 $TEST_MDA_SIZE_BYTES
+
+	lib_mangle_json_hdr0 $TEST_MDA_SIZE $TEST_JSN_SIZE
+	lib_mangle_json_hdr1 $TEST_MDA_SIZE $TEST_JSN_SIZE kill
+}
+
+function check()
+{
+	lib_hdr1_killed $TEST_MDA_SIZE || exit 2
+
+	read_luks2_json0 $TGT_IMG $TMPDIR/json_res0 $TEST_JSN_SIZE
+	jq -c --arg koff $KEYSLOTS_OFFSET --arg jsize $JSON_SIZE --arg off $DATA_OFFSET --arg mda $((2*TEST_MDA_SIZE_BYTES)) \
+		'if ([.keyslots[].area.offset] | map(tonumber) | min | tostring != $koff) or
+		    (.config.json_size != $jsize) or
+		    (.config.keyslots_size != (((($off | tonumber) - ($mda | tonumber) + 4096)) | tostring ))
+		then error("Unexpected value in result json") else empty end' $TMPDIR/json_res0 || exit 5
+}
+
+lib_prepare $@
+generate
+check
+lib_cleanup